Bottom grate for stoves



(No Mod-e1.) A. S. NEWBY.

Bottom lGrote .forv Stoves.

No. 235,891. Patented Dec.2s,l.1sso;

*cb lllllll mi NAFETERS. PNOTU'LTTHDGRAPHER, WASHINGTON. D CV UNITED STATES PATENT OFFICE.

ALBERT S. NEWBY, OF OHAMPAIGN, ILLINOIS.

BOTTOM GRATE FOR STOl/ES.

SPECIFICATION forming part of Letters Patent No. 235,891, dated December 28, 1880.

Application filed May 7, 1880.

To all whom it may concern:

Beit known that I, ALBERT S. NEWBY, a citizen of the United States, residing at Champaign, in the county ot' Champaign and State of Illinois, have invented certain new and usefulImprovements in Bottom Grates for Stoves, Ranges, dto. and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or iignres of reference marked thereon, which form a part of this specication, and in which- Figure l is a bottom plan of my improved grate; Fig. 2, a central section of the same; Fig. 3, detail bottom view of two of the gratebars. Fig. 4 is a transverse section through one of the grate-bars O, shown in Fig. 5. Fig. 5 is a transverse section through the line w :n of Fig. 1, when reversed to show a top plan of the grate.

My invention relates to certain new and useful improvements in the class of sectional bottom grates which can be readily adapted to different-sized stoves, furnaces, Sto.

To this end the invention consists in the novel construction, combination, and arrangement of parts, all as will be hereinafter fully described, and specifically pointed out in the claims.

To enable others skilled in the art to make and use my invention, I will now proceed t describe its construction and operation.

In the drawings, A represents the main section of my improved grate, having a troughshaped central bar, B, with grate-bars G pro j ecting from each side thereof, and an end journal, b.

D represents a lon gitudinal'oval-shaped bar, adapted to iit in the trough-shaped bar B of the main section, and provided with an end journal, d.

The bar B of the main section is provided with a series of holes, a, and the bar D with a longitudinal central slot, d', by which, through the medium of screw bolts and nuts 'E e, said bars are adapted to be adjustably secured together, for the purpose of len gthening or shortening the grate to suit different-sized stoves, furnaces&c. Sections A of grate-bars, simi- (No model.)

lar to section A, are also provided with holes, by which they can be secured in a similar manner, by bolts and nuts E c, to bar D. These sections 'A A are provided with transverse grooves F between the bars C, as clearly shown in Figs. l and 3, by which the bars can be readily broken oft' and added to bar D by adjustin g said bar outward or away from bar B, in order to lengthen the grate, or taken or broken off, and bar D adjusted toward bar B, to shorten the grate.

The grate-bars O are made T-shaped in crosssection, with main rib c extending downward, and the side flanges, c c', are made thinner, or beveled off on their bottom sides toward the main rib c, as shown at c2, Fig. 4, to permit of their being cracked or broken off to increase the Ventilating-'space between the bars, as a coal or wood re may require, while the sides c3 c3 ot' the flanges c c are beveled oi downward to prevent clogging and choking up of the grate. Consequently the bars cannot warp 'or become crooked by heat, as the air has free and close circulation and connection with there. provided with cross-grooves, by which they can be readily broken oft' to suit the width of different-sized stoves, furnaces, &c.

The boltholes in the bar B of main section A also act as ventilators for the grate.

In manufacturing my improved grates it is designed to make them of the ordinary size or length, so that the bars O, broken off to make a short grate, may be used to form a lon ggrate.

Further explanation of my improved grate is deemed unnecessary, it being obvious'from the foregoing description.

The grate-bars O are also Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is

1. The combination of the main section A, having trough-shaped central bar, B, with projecting grate-bars, and the oval-shaped bar D, provided with one or more similar grate-sections, A', substantially as and for the purpose shown and described.

Z. lI he combination of the main section A, having trough-shaped central bar, B, provided with holes a, and the slotted adjustable ovalshaped bar D, substantially as and for the purpose herein shown and described.

IOO

'3. lheeombinzttion7 with the adjustableovaland flanges c c', beveled off o n their sides, and 1o shaped loarD7 ofthe seotionsA,having troughalso bottom sides toward main rib o, substanshnped oentra1bur,B,provided with transverse tially as and for the purpose specified.

grooves F between the grate-bars, substan- In testimony whereof I affix my signature in tially as and for the purpose herein shown and presence of two witnesses.

described. ALBERT S. NEWBY.

4. The combinatiomwith the central bar, B, Witnesses: of the gratebars C, made T-shuped in cross- HARVEY P. CUMMINGs, section,'with main rib c extending downward, l JOHN WAsHBURN. 

